SL 763-2018 in English

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Standard No:	SL 763-2018
Document status:	VALID
Title in English:	Technical guidelines for water resources argumentation of thermal power plant construction
Title in Chinese:	火电建设项目水资源论证导则
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2018-03-20
Implemented on:	2018-06-20
Professional Classification:	SL-Water Resources
Related Keywords:	single water use analysis water balance analysis water use water balance diagram water resources argumentation water intake water rationality
Related Topics:	water resources construction project argument water resource argument project source All project funds construction project Thermal power Water Resources Justification Guidelines Water Resources Justification Guidelines Water quality 36 items Purpose of the guideline Guidance on Water Resource Demonstration for Construction Projects in Mining Industry Guidelines for Water Resources Demonstration of Construction Projects Water Guidelines water resource argument Construction Project Water Resources Demonstration Guidelines 2021 Construction Project Water Resources Demonstration Guidelines 2023 Water resources demonstration does not require qualifications GJB181 power supply characteristics project Stabilized power supply project

Introduction

Analysis of the core content of the standard

Argumentation module	First-level argumentation requirements	Second-level argumentation requirements
Reasonableness of water use	Water balance diagram of the whole system + single water use analysis	Water balance analysis of major systems
Water intake source	Multi-scheme comparison + risk plan	Feasibility analysis + backup plan
Impact of water withdrawal	Cumulative impact + ecological topic	Emission compliance analysis

A three-level water balance system needs to be established: whole plant → subsystem → key unit, with key checks on:

Concentration ratio of circulating cooling system (should be controlled at 4-5 times)
Auxiliary machine cooling water make-up rate (≤0.5%)
Water intake per unit of power generation (compare with DL/T5513)

Direct current cooling project requires special demonstration:

Quantitative analysis of ecological base flow impact is required when water intake is ＞10% of available water supply
A two-dimensional/three-dimensional diffusion model needs to be established for warm wastewater
It is strictly forbidden to set up water intakes in fish spawning areas

Compared with GB/T35580, this standard highlights:

Added classification indicators for biomass power generation projects (installed capacity ≥150MW is classified as level one)
Strengthen the requirements for recycled water utilization (accounting for ≥70% is certified as level one)
Clarify the material balance verification method for "near-zero emission" projects

More samples: JC/T 2453-2018 YD/T 3934-2021 GB 50021-2001(2009)

Sample only — not a preview of SL 763-2018

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